This Adjustable Spring Hand Exerciser offers custom exercises to improve finger strength and dexterity for guitar and piano players. The ergonomic design also allows the hand grip to provide effective finger, hand, wrist, and forearm workouts. In addition, your hand endurance is increased when you work out with hand grips because you increase the force your hands can apply.
Pros: With 18K reviews, users recommend it strengthens your wrists, and you can feel very easy and light to carry weights. It has decent resistance. The product is sturdy and durable.
Cons: The metal spring should be a little bit stronger and harder.
